Heel-burnishing machine



Patented Apr. 11, 1922.

THOMAS LUNID, or BEVERLY,

era-res e rs-roman MASSACHUSETTS, AssIGNoR To IINIT D-XPEDITE FINISHINGCOMPA Y, or PORTLAND, MAINE, A CO PORATIONOF MAINE HEEL-B RNIsI-IINGMACHINE.

To all whomit may concern .1

Be it known that I, THOMAS LUND, a citizen of the United v States,residing at Beverly, inthe county of Essex and State ofMassachusetts,have invented certain Improvements in Heel-BurnishingMachines,

7 of which the followingdescription, in connection with the accompanyingdrawings; is a specification, like reference charactersjon thedrawingsindicating like parts in the several figures. v 5 1 f V p 1 7This invention relates to a heel burnishing machine and moreparticularly to mecha nism for guiding a shoe relatively to theburnishing tool. Atypical heel: burnishing machine embodyingfa rotaryheel burnishing tool is illustrated in the patent to Pease No. 743,988.In machines of'that type, the rotary burnishing'tool is provided with acircumfer ential'work surface havingfa contour conforming withthecross-sectional contour, of the heel to be burnished. 1A tread rest isusually provided against whichthe top lift ofthe heel is rested, as thelatter is applied to the tool and' this rest maybe fixed in differentpositions. Such arrangements, however, take no account .of the fact thatin certain types of heels there is a material difference in the. heightof the heel, at its front and back 'with the result that if the treadrest is properly adjusted to enable the tool to be applied throughoutthe height of the heel at itsback, it will be. applied to a portion ofthe upper of theshoe near the front of the. heel. On.the'othenhand, ifthe tread rest is so. adjusted that'itis in proper position for theheightof the front of the heel, obviously it will not permit the wholeof the heel tobe waxed orburnished.

In order to. overcome thisdiiiic'ulty, I have devised novel mechanismfor a machine of the type described comprising means for positioningashoe to holdthe. rand crease edgeof theheel opposite to one adge of theburnishing tool asthe heelhis turned in being presented to the tool.This is preferably accomplished by meansof a relatively fixed randcrease guide plate mounted adj acent one edge of the circumferentialwork surface ,of the tool and forming-a fulcrum about which theshoeslmay be rockedfion 7 an axis substantially tangential to the randcrease as the different portions ofthe contour surfaces of the heels arepresented to Application filed Meet 27, 1917. Serial No. 157.759.

Specification of Letters Patent. Ap

n The mechanism, which I have devised, also includes means movabletransversely of the tool and automatically maintained in engagement withthe tread of theheel to steadyit. Such a mechanism provides forvariations in *the height of various parts of the heel while insuringthat the, upper is fully protected and the heel firmly supported during itsapplication to the burnishing tool. rlflvidently the,rand crease gu demay be used independently of the treadrest. L -f v w or a fullerunderstandingof myinventron, reference may be had to the followingspecification taken in connectionwith the accompanying drawings inwhich, 7 I Fig. l is a perspective YieWT of one embodiment of myinvention;

Fig. 2 is'a Fig. 3 is an'end view of the rand crease guide and 5 thefinishing tool.

plan view of a portion thereof;

Fig. .tis a fragmentary view showifig a heel in two positions. I V IMachines of this type comprise a support ing column 10, on which ismounted a shaft carrying a rotary burnishing tool v12 which is driven bymeans of suitable gears lt. A wax spreading brush 16 insures an evenspreading of the wax over the work surface 20 comprising. 7

be 'providedwith. a flatintegral w 7 lug 22 which engages a correspondingroove- 24 in a; supporting bracket26. The

bracket 26 is adjustably bolted to a rod 30 carried upon-the frame ofthe machine. The guide-20 is held uponthebracket 26 by means ofa bolt-32 and wing-nut 34c and ment of the bolt 32 and therand guide 20transversely of the bracket. 'It will be seen from 3 that the guide 20is suitably recessed 'to prevent interference with ,the end of theburnishing 130013 shaft as the former is adjusted on the bracket 26.

. a slot- 35 in the bracket 26 allows for move 7 105.

A tread rest 36 is provided which may conveniently be of the formillustrated in the patent to Pease No. 1,19?,850. This tread rest ismounted upon a slide 38 by means of a. bolt 40 and is angularlyadjustable with relation to the work surface of the burnishing tool inthe manner illustrated in the latter patent. The slide 38 is dove-tailedto a bracket 42 on the machine frame and is provided with a dependinglug 44 carrying a bolt 46 having a stop nut 48. This nut co-operateswith a lug 50 upon the bracket 42 to adjust the normal position of thetread restand a spring 52 encircles the bolt &6 and is interposedbetween the lugs 44: and 50 so that it urges the tread rest toward theguide 20.

The operator wil1 apply a shoe to the burnishing tool by pushing thetread of the heel against the tread rest 36 until he can 10- cate therand guide 20 inthe rand crease of the shoe. The resilient mounting ofthe tread rest enables it to accommodate itself to variations in theheight of the various parts of a heel, as shown in Fig. 4, so that theburnishing action is applied to all parts of the surface thereof. At thesame time the upper is fully protected by reason of the action of therand crease guide in definitely locating the shoe relatively to theburnishing tool.

Inasmuch as there is relatively little difference in the dimensions ofthe small ends of different burnishing tools, the curvature of the edgeof the guide 20 will always be similar to that of the tool. Besidesthis, the guide may be adjusted longitudinally along the rod 30 andtransversely in the slot 35 as 'mzg be desired.

aving thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is 1. A rotatableburnishing tool provided with a circumferential work surface to treat ashoe heel throughout its height and a thin hat guide plate fixedtransversely to the axis of rotation of said tool and arranged to form aguide to enter the rand crease of a shoe and forming a fulcrum aboutwhich the shoe may be rocked on an axis substantially tangential to therand crease to present the different parts of its heel surface to theburnishing tool.

2. In a burnishing machine, a rotatable burnishing tool provided with acircumferential work surface arranged to treat a shoe heel throughoutits height, a thin guide plate adjacent to one edge of said work surfaceand substantially at right angles to the axis of rotation, said platehaving its edge arranged to enter the rand crease of a shoe operatedupon, a supporting bracket extending in proximity to the end of thetool, and means for adjustably securing the plate upon the bracket, theedge of said plate bemg arranged to form a fulcrum about which the shoemay be rocked to bring the different parts of its heel surface intoburnishing position.

3. In a burnishing machine, a rotatable burnishing tool provided with acircumferential work surface, a thin flat guide plate adjacent to oneedge of said work surface and substantially at right angles to the axisof rotation, said plate having its edge arranged to enter therand creaseof a shoe operated upon and forming a fulcrum about which the shoe maybe rocked to bring the different parts of the surface of its heel intocontact with the burnishing tool, a support ing bracket for the guideplate extending in proximity to the end of the tool, and means arrangedfor varying the position of the bracket to move the plate toward andfrom the tool.

4.'In a burnishing machine, a rotatable burnishing tool provided with acircumferential work surface, a thin fiat guide plate adjacent to oneedge of said work surface and substantially at right angles to the axisof rotation, said plate having its edge arranged to enter the randcrease of a shoe operated upon and forming a fulcrum about which theshoe may be rocked to bring the different parts of the surface of itsheel into contact with the burnishing tool, a supporting bracket for theguide plate extending in proximity to the end of the tool, meansarranged for varying the position of the bracket to move the platetoward and from the tool, and means for adjustably securing the plateupon the bracket. 7

5. In a burnishing machine, a rotary burnishing tool, a bracketextending in proximity to one extremity of the tool and being providedwith a depression, and a fiat guide plate adjacent to the tool andhaving a lug movable in the bracket depression to permit adjustment ofthe plate transversely of the tool, and means for fixing the plate inits adjusted position.

6. In a burnishing machine, ..a frame, a burnishing tool rotatabletherein, a bracket adjustably mounted upon the frame and having at theend of the tool a depression, and a fiat guide plate provided with a lugmovable in the depression, the edge of said guide plate forming afulcrum to enter the rand crease of a shoe and about which the shoe maybe rocked to bring the different parts of the surface of its heel intoengage thereto, a slide arranged to move yieldably125.

parallel to the spindle, and a tread rest arranged for adjustment uponthe slide about a substantially vertical axis.

'8. In a burnishing machine, a rotatable burnishing tool provided with acircumferential Work surface, a thin fiat guide plate adjacent to oneedge of said Work surface substantially at right'angles to the axis ofrotation and having its edge arranged to enter the rand crease of a shoeoperated upon, a tread rest yieldably mounted for movement toward andfrom the guide plate,

and means arranged to permit the angle of the tread rest with respect tothe guide plate to be varied.

In testimony whereof I have signed my name to this specification.

THOMAS LUND.

